EVERYDAY SCIENCE

Detailed explanation-1: -Water use has been increasing worldwide by about 1% per year since the 1980s, driven by a combination of population growth, socio-economic development and changing consumption patterns.

Detailed explanation-2: -Looking forward, it is estimated that water demand will continue to rise. This is mainly ascribed to demand by industry and households, which taken together will represent an almost threefold increase by 2050. As our available water resources reach their physical limits, so water security may be adversely affected.

Detailed explanation-3: -Irrigation water use increased by about 29 percent since 1950-it takes more water to grow food for our increasing population.

Detailed explanation-4: -Due to increase in population, people move to cities which leads to building more shelters, for which people are clearing the forests by cutting down the trees i.e, deforestation. Due to deforestation water cycle gets affected thereby reducing the rainfall, and lack of rainfall is responsible for the shortage of water.